Cita APA (7a ed.)

Pennsylvania State University, University Park, Pa., & Pennsylvania State University. (1979). The Pennsylvania State University studies.

Cita Chicago Style (17a ed.)

Pennsylvania State University, University Park, Pa., y Pennsylvania State University. The Pennsylvania State University Studies. University Park, Pa, 1979.

Cita MLA (8a ed.)

Pennsylvania State University, University Park, Pa., y Pennsylvania State University. The Pennsylvania State University Studies. 1979.